Fits 2.36" Bar: The base diameter is 6 cm. Installation is simple with no mounting screws or bolts. Full 360 Degree Swivel: Allows up and down movement for a wide range of exercises. Ideal for core training that targets the back, shoulders, thighs, and more. Non-slip Design: Surface texture increases friction with the floor for stability. Non-slip, floor-friendly, and does not damage flooring. High-quality Barbell Bar: Made of high-quality rubber, flexible and large enough to support the weight of a barbell. Supports comprehensive full-body strength training. Applications and use scenarios: - Core and rotational training at home: use for torso twists, anti-rotation holds, and other core stabilization drills. - Full-body strength sessions: perform dynamic movements that engage hips, shoulders, and legs with controlled swivel. - Mobility and warm-up: incorporate into mobility routines and dynamic stretches on various floor surfaces.